Improvement in roof-battening



' J. O. WANDS.

Roof-Battening.

"[No. 209,310. Patented Oct. 22, 1878.

I I U v v V I WITNESSES WIN (/DR ATTORNEY UNITED STA ES,

PATENT OFFICE.

JOHN C. WANDS, OF NASHVILLE, TENNESSEE.

IMPROVEMENT I N ROOF-BATTENING.

Specification forming part of Letters Patent No. 209,310, dated October22, 1878; application filed July 16, 1878.

To all whom it may concern:

Be it known that 1, JOHN C. WANDs, of Nashville, in the county ofDavidson and State of Tennessee, have invented a new and valuableImprovement in Joints for Wooden Roofs; and I do hereby declare that thefollowing is a full, clear, andv exact description of the constructionand operation of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawings is a cross-section of my improved roof-jointclosed. Fig. 2 is a like view thereof open, and Figs. 3 and 4c aremodifications.

This invention has relation to improvements in joints for car-roofboards; and the nature of the invention consists in combining with twoadjoining roof-boards,tongued and grooved into each other, and rabbetedupon their lower contiguous edges to form a recess .under their joint,and provlded with drippoints, a gutter arranged in said recess, and outof contact with the drip-points, and receiving the drip, as will behereinafter more fully described.

In the annexed drawings, the letter A designates two adjoiningroof-boards of a carroof. One of these'boards is provided near its upperportion with a tongue, a, that is received into a groove, I), in acorresponding position in the other board, the object of which is toprevent the edges of said boards from getting out of line with eachother, and to exclude cinder-s from the joint. The lower contiguousedges of these boards are rabbeted, as shown at c, forming a recess uponthe under side of the board, the half of which is in one and the otherhalf in the other of said boards. Upon the edges of these rabbets areangular projections extending downward into the recess aforesaid, andforming a drip-point, d. The inclined walls of this recess presentobtuse angles with the top walls of the rabbets, for a purposehereinafter explained.

B represents a trough or gutter of wood or iron, or other suitablematerial, arranged in the recess t under the drip-point d. This gutterextends from side to side of the said recess, its upper end bearingagainst the top wall of therecess, and it allows the joint to open aseither of the boards A contract without opposition, as shown in Fig. 4.

It will be seen that, the boards being inclined, as are also thegutters,the water passing through the joints will be received in thegutters, and be carried to the eaves of the roof and discharged.

The object of the drip-point in the recess t is to prevent drops ofwater from running along the topsof the recess, and passing outside ofthe trough into the interior of the car in ascending and descendinggrades. This occurrence is often seen during showers on telegraph-wiresand other inclined objects, where drops of water run along their undersides a considerable distance, until, by uniting with other drops, theyhave acquired sufficient volume and weight to overcome the force ofcohesion.

I am aware that gutters for the collection of drip have heretofore beenemployed at the intersection of the boards of roofs; but all such havebeen in contact with the drip-point. Therefore I do not claim, broadly,the combination of gutter with the boards of a roof.

What 1 claim as new, and desire to secure by Letters Patent, is

The combination, in a wooden roof, of adjoining boards, ton gued andgrooved into each other, having a recess under their joint in theirunder sides, and an angular drip-point extending downward into saidrecess, and a trough or gutter fitting into said recess under thedrip-point, out of contact therewith, substantially as set forth.

In testimony that I claim the above I have hereunto subscribed my'naniein the presence of two witnesses.

JOHN G. WANDS. Witnesses:

W. O. BUTTERFIELD, THEO. PLUMMER.

